Precursors

In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound.

Palladium(II) nitrate hydrate is a precursor for palladium catalysts

Pentamethylcyclopentadienylrhodium(III) chloride dimer is a Rh catalyst precursor and is a transfer hydrogenation catalyst

Silver Chloride typically used as an electrode material

Palladium(II) chloride is a palladium salt represented by PdCl2.